CN116320971A - Vehicle-mounted looking-around system with UWB technology - Google Patents
Vehicle-mounted looking-around system with UWB technology Download PDFInfo
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- CN116320971A CN116320971A CN202310201590.3A CN202310201590A CN116320971A CN 116320971 A CN116320971 A CN 116320971A CN 202310201590 A CN202310201590 A CN 202310201590A CN 116320971 A CN116320971 A CN 116320971A
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- 238000005516 engineering process Methods 0.000 title claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
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- Human Computer Interaction (AREA)
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- Lock And Its Accessories (AREA)
Abstract
The invention belongs to the technical field of vehicle positioning systems, in particular to a vehicle-mounted looking-around system with UWB technology, which comprises the following steps: the method comprises the steps that a looking-around camera mounted on a vehicle continuously emits UWB signals and communicates with a smart phone of a vehicle owner, a 360-degree looking-around controller system calculates a time difference value generated by the time when the vehicle emits signals and the time when the vehicle owner receives signals, a TDOA positioning algorithm is utilized to further obtain the relative position between the vehicle and the vehicle owner, the position relation between the vehicle owner and the vehicle is displayed at the mobile phone end of the vehicle owner, and then the vehicle owner can search the vehicle through the position relation; the vehicle is provided with the 360-degree looking controller system for carrying out information communication with the mobile phone of the vehicle owner, and the vehicle owner can carry out signal communication between the vehicle and the vehicle owner through the 360-degree looking controller system, the UWB-TDOA positioning algorithm and the ultra-wideband wireless communication technology (UWB), so that the vehicle owner can conveniently and rapidly find the vehicle.
Description
Technical Field
The invention relates to the technical field of vehicle positioning systems, in particular to a vehicle-mounted looking-around system with UWB technology.
Background
At present, along with development and popularization of auxiliary driving technology, more and more vehicles are provided with 360-degree looking-around systems, namely, a wide-angle camera is respectively arranged at the front, the back, the left and the right of the vehicle body, and the 360-degree looking-around systems splice 4-way camera images to form a view which surrounds the vehicle body by 360 degrees so as to provide driving assistance.
With the popularization of household automobiles, parking lots are more and more, wherein the indoor parking ratio is also larger and larger, such as underground parking lots of communities, indoor parking lots of markets and the like, and accordingly, the problem of automobile finding is caused, and returning to a strange parking lot after finishing the automobile finding is often difficult, and sometimes more time and effort are required.
And the car owner forgets to lock the car easily when leaving the car, or when carrying articles, it is troublesome to open the car door. Therefore, a vehicle-mounted looking-around system with UWB technology is proposed to solve the above problems.
Disclosure of Invention
In order to overcome the defects in the prior art, after a parking lot is stiff, a vehicle is difficult to find, time is wasted, a vehicle owner easily forgets to lock the vehicle when leaving the vehicle, or the vehicle door is troublesome to open when carrying articles, and the invention provides a vehicle-mounted looking-around system with UWB technology.
The technical scheme adopted for solving the technical problems is as follows: the method comprises the steps that a looking-around camera mounted on a vehicle continuously emits UWB signals and communicates with a smart phone of a vehicle owner, a 360-degree looking-around controller system calculates a time difference value generated by the time when the vehicle emits signals and the time when the vehicle owner receives signals, a TDOA positioning algorithm is utilized to further obtain the relative position between the vehicle and the vehicle owner, the position relation between the vehicle owner and the vehicle is displayed at the mobile phone end of the vehicle owner, and then the vehicle owner can search the vehicle through the position relation;
the looking-around camera is arranged at the positions of a left rearview mirror, a right rearview mirror, a front bumper and a rear bumper of the vehicle body.
Preferably, the information exchange equipment between the vehicle owners and the vehicles can be a mobile phone with APP software matched with the vehicle systems.
Preferably, communication between the vehicle's looking-around camera and the vehicle owner's handset with matching software is via ultra wideband wireless communication technology (UWB) for communication of signals.
Preferably, the algorithm used for signal communication between the 360-degree looking around controller system and the vehicle owner mobile phone APP is a UWB-TDOA positioning algorithm, the position relation between the vehicle owner and the vehicle is calculated through the UWB-TDOA positioning algorithm, and the position is displayed on the vehicle owner mobile phone APP.
Preferably, when the position distance between the vehicle owner and the vehicle is 10m, a signal can be sent to the vehicle to light a headlight of the vehicle, and when the position distance between the vehicle owner and the vehicle is within 2m, a signal can be sent to the vehicle to unlock a door lock of the vehicle by using the UWB-TDOA positioning algorithm.
Preferably, the people can be identified by utilizing the looking-around camera arranged on the rear bumper of the vehicle body, and when the vehicle owner walks to the rear tail position and stands for 2-5S, and the vehicle is in an unlocking state, the 360-degree looking-around controller system carried by the vehicle can send a command to the vehicle body and open the trunk.
Preferably, when the ultra wideband wireless communication technology (UWB) and the UWB-TDOA positioning algorithm are used for detecting that the mobile phone of the car owner is in the car, the car can be ignited, and if the car owner is detected not to be in the car, the car cannot be ignited.
Preferably, when the ultra wideband wireless communication technology (UWB) and the UWB-TDOA positioning algorithm detect that the distance between the mobile phone of the vehicle owner and the vehicle is far away from each other and the distance is more than 5m, the 360-degree looking-around controller system carried by the vehicle can control the vehicle to lock.
The invention has the advantages that:
1. the invention can make the communication of signals between the vehicles and the vehicle owners through the 360-degree looking controller system, the UWB-TDOA positioning algorithm and the ultra-wideband wireless communication technology (UWB) carried by the vehicles, thereby facilitating the vehicle owners to quickly find the vehicles, solving the problems that the vehicles are difficult to find and time is wasted after the parking lot is well stiff, helping the vehicle groups lock or unlock the vehicle doors, assisting the vehicle groups to control the vehicles and improving the convenience of the vehicle use;
2. the 360-degree looking-around controller system carried by the vehicle can also communicate with an ultra-wideband wireless communication technology (UWB) and has the advantages of low system complexity, low power spectrum density of a transmitting signal, insensitivity to channel fading, low interception capability, high positioning precision and the like, and can reduce the interference of surrounding environment on signal communication between the vehicle and a vehicle owner.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a camera distribution structure of a vehicle according to the present invention (in fig. 1, 2, 3, and 4 are 360-degree looking cameras);
FIG. 2 is a schematic diagram of a workflow structure according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-2, a vehicle-mounted looking-around system with UWB technology includes the following steps: the method comprises the steps that a looking-around camera mounted on a vehicle continuously emits UWB signals and communicates with a smart phone of a vehicle owner, a 360-degree looking-around controller system calculates a time difference value generated by the time when the vehicle emits signals and the time when the vehicle owner receives signals, a TDOA positioning algorithm is utilized to further obtain the relative position between the vehicle and the vehicle owner, the position relation between the vehicle owner and the vehicle is displayed at the mobile phone end of the vehicle owner, and then the vehicle owner can search the vehicle through the position relation; the vehicle is provided with the 360-degree looking around controller system for carrying out information communication with the mobile phone of the vehicle owner, the looking around camera is arranged at the positions of the left rearview mirror, the right rearview mirror, the front bumper and the rear bumper of the vehicle body, and the 360-degree looking around controller system, the UWB-TDOA positioning algorithm and the ultra-wideband wireless communication technology (UWB) are carried out on the vehicle, so that the communication of signals between the vehicle and the vehicle owner can be carried out, the vehicle owner can conveniently and rapidly find the vehicle, the problem that the vehicle is difficult to find after the parking lot is parked, and time is wasted is solved, the vehicle owner can be helped to lock or unlock the vehicle door, the vehicle owner is assisted to control the vehicle, and the convenience of the vehicle use is improved.
When the intelligent vehicle information exchange system works, the information exchange equipment between the vehicle owners and the vehicles can use a mobile phone with APP software matched with the vehicle systems.
Communication between the vehicle's looking-around camera and the vehicle owner's handset with matching software is through ultra wideband wireless communication technology (UWB) for signal communication.
The algorithm used for signal communication between the 360-degree looking-around controller system and the vehicle owner mobile phone APP carried by the vehicle is a UWB-TDOA positioning algorithm, the position relation between the vehicle owner and the vehicle is calculated through the UWB-TDOA positioning algorithm, and the position is displayed on the vehicle owner mobile phone APP.
When the position distance between the vehicle owner and the vehicle is within 10m, a signal can be sent to the vehicle to light a headlight of the vehicle, and when the position distance between the vehicle owner and the vehicle is within 2m, a signal can be sent to the vehicle to unlock a door lock of the vehicle.
The people can be identified by utilizing the looking-around camera arranged on the rear bumper of the vehicle body, when the vehicle owner walks to the rear tail position and stands for 2-5S, and the vehicle is in an unlocking state, the 360-degree looking-around controller system carried by the vehicle can send a command to the vehicle body and open the trunk.
When the ultra-wideband wireless communication technology (UWB) and the UWB-TDOA positioning algorithm are used for detecting that the mobile phone of the vehicle owner is in the vehicle, the vehicle can strike a fire, and if the vehicle owner is detected not to be in the vehicle, the vehicle can not strike a fire.
When the ultra-wideband wireless communication technology (UWB) and the UWB-TDOA positioning algorithm are used for detecting that the distance between the mobile phone of the vehicle owner and the vehicle is far away from each other and the distance is more than 5m, the 360-degree looking-around controller system carried by the vehicle can control the vehicle to lock.
Working principle: after the car owner arrives at the parking lot, the APP of the mobile phone is opened, the APP of the mobile phone starts to receive UWB signals sent by the 360-degree looking-around controller system of the car, and matched signals preset by the car owner are screened out.
Step 2: after the mobile phone finds the UWB signal sent by the automobile, a command for finding the automobile is sent, and the 360-degree looking-around controller on the automobile calculates the relative positions of the mobile phone and the mobile phone by using a UWB-TDOA positioning algorithm, sends the positions to the mobile phone and displays the positions to an automobile owner. (the mobile phone APP can also calculate the position of the mobile phone APP relative to the vehicle by using UWB-TDOA and send the position to the 360-degree looking controller);
step 3: the car owner starts to search for own car according to the direction and distance prompted by the mobile phone, and in the process, the UWB equipment also dynamically calculates the distance and direction between the mobile phone and the car and updates the distance and the direction in real time.
Step 4: when the vehicle owner is 10m away from the vehicle, the automobile headlight is lighted (can preset), so that the vehicle owner can conveniently find the vehicle.
Step 5: when the distance between the vehicle owner and the vehicle is 2m, the vehicle unlocks the main driving door. When the owner needs to put articles in the trunk, the UWB can detect that the mobile phone is in the trunk position and the distance is within 50cm and in the trunk middle position as long as the owner directly walks to the trunk middle position and stands for 2S, and the 360 controller sends a command to the car body and opens the trunk.
Step 6: when the mobile phone is in the automobile, the automobile can be ignited, and if the automobile owner is detected to be not in the automobile, the automobile cannot be ignited.
Step 7: when the car owner arrives at the destination, the car gets off after flameout, when the car owner gets far from the car and the distance exceeds 5m, the 360 controller controls the car to lock if the car is not locked at the moment.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (8)
1. A take UWB technology's on-vehicle system of looking around, characterized in that: the method comprises the following steps:
the method comprises the steps that a looking-around camera mounted on a vehicle continuously emits UWB signals and communicates with a smart phone of a vehicle owner, a 360-degree looking-around controller system calculates a time difference value generated by the time when the vehicle emits signals and the time when the vehicle owner receives signals, a TDOA positioning algorithm is utilized to further obtain the relative position between the vehicle and the vehicle owner, the position relation between the vehicle owner and the vehicle is displayed at the mobile phone end of the vehicle owner, and then the vehicle owner can search the vehicle through the position relation;
the vehicle is equipped with a 360-degree looking around controller system for information communication, and the looking around cameras are arranged at the positions of a left rearview mirror, a right rearview mirror, a front bumper and a rear bumper of the vehicle body.
2. A vehicle-mounted look-around system with UWB technology as in claim 1, wherein: the information exchange equipment between the vehicle owners and the vehicles can be a mobile phone with APP software matched with the vehicle systems.
3. A vehicle-mounted look-around system with UWB technology as in claim 2, wherein: communication between the vehicle and the vehicle owner's handset with matching software is by ultra wideband wireless communication technology (UWB) for communication of signals.
4. A vehicle-mounted look-around system with UWB technology as claimed in claim 3, wherein: the algorithm used for signal communication between the 360-degree looking-around controller system and the vehicle owner mobile phone APP carried by the vehicle is a UWB-TDOA positioning algorithm, the position relation between the vehicle owner and the vehicle is calculated through the UWB-TDOA positioning algorithm, and the position is displayed on the vehicle owner mobile phone APP.
5. The vehicle-mounted look-around system with UWB technology of claim 4 wherein: when the position distance between the vehicle owner and the vehicle is within 10m, a signal can be sent to the vehicle to light a headlight of the vehicle, and when the position distance between the vehicle owner and the vehicle is within 2m, a signal can be sent to the vehicle to unlock a door lock of the vehicle.
6. The vehicle-mounted look-around system with UWB technology of claim 5, wherein: the people can be identified by utilizing the looking-around camera arranged on the rear bumper of the vehicle body, when the vehicle owner walks to the rear tail position and stands for 2-5S, and the vehicle is in an unlocking state, the 360-degree looking-around controller system carried by the vehicle can send a command to the vehicle body and open the trunk.
7. A vehicle-mounted look-around system with UWB technology as in claim 6, wherein: when the ultra-wideband wireless communication technology (UWB) and the UWB-TDOA positioning algorithm are used for detecting that the mobile phone of the vehicle owner is in the vehicle, the vehicle can strike a fire, and if the vehicle owner is detected not to be in the vehicle, the vehicle can not strike a fire.
8. A vehicle-mounted look-around system with UWB technology as in claim 7, wherein: when the ultra-wideband wireless communication technology (UWB) and the UWB-TDOA positioning algorithm are used for detecting that the distance between the mobile phone of the vehicle owner and the vehicle is far away from each other and the distance is more than 5m, the 360-degree looking-around controller system carried by the vehicle can control the vehicle to lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310201590.3A CN116320971A (en) | 2023-03-03 | 2023-03-03 | Vehicle-mounted looking-around system with UWB technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310201590.3A CN116320971A (en) | 2023-03-03 | 2023-03-03 | Vehicle-mounted looking-around system with UWB technology |
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| Publication Number | Publication Date |
|---|---|
| CN116320971A true CN116320971A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310201590.3A Pending CN116320971A (en) | 2023-03-03 | 2023-03-03 | Vehicle-mounted looking-around system with UWB technology |
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| Country | Link |
|---|---|
| CN (1) | CN116320971A (en) |
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- 2023-03-03 CN CN202310201590.3A patent/CN116320971A/en active Pending
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